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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Relational Database Concepts | 5% | - Relationship between database and SQL - Relational database theoretical and physical aspects - SQL SELECT clauses and ERD components |
| Topic 2: Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Topic 3: Using SET Operators | 5% | - Using ORDER BY with set operations - UNION, UNION ALL, INTERSECT, MINUS operators - Matching SELECT statements |
| Topic 4: Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Topic 5: Using Functions | 25% | - Data type conversion: implicit and explicit - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Date arithmetic and date functions - ROUND, TRUNC, MOD functions - Group functions and grouping data - Character functions for string manipulation - NVL, NULLIF, COALESCE functions - Restricting group results - Nested functions |
| Topic 6: Managing Tables with DML | 5% | - Multi-table INSERT and MERGE statements - INSERT, UPDATE, DELETE operations - Transaction management and control |
| Topic 7: Retrieving and Sorting Data | 15% | - DEFINE and VERIFY commands - Arithmetic expressions and NULL values - Using SELECT statement and column aliases - Operators, literals, DISTINCT keyword - Limiting rows and substitution variables - Operator precedence rules - Sorting query results |
| Topic 8: DDL for Tables and Relationships | 15% | - Table structure, columns, data types - Temporary and external tables - TRUNCATE TABLE statement - Constraints management - Views management - Drop columns, set unused columns - CREATE TABLE statement |
| Topic 9: Controlling User Access | 5% | - Granting privileges on tables - System vs object privileges - Roles creation and privilege assignment |
| Topic 10: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage indexes - Create and manage sequences |
| Topic 11: Data Dictionary and Time Zones | 5% | - INTERVAL data types - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - Using data dictionary views |
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NEW QUESTION # 54
Which of the following best describes a relational database?
Answer: C
NEW QUESTION # 55
Which command grants a user the ability to query data from a specific table?
Answer: D
NEW QUESTION # 56
Which of the following can be achieved using a correlated subquery?
Answer: B
NEW QUESTION # 57
Which of the following data dictionary views provides information about constraints on tables?
Answer: C
NEW QUESTION # 58
What is required for the queries combined by a SET operator to work correctly?
Answer: A
NEW QUESTION # 59
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